Dumping unit for motor trucks



Jan. 6, 1931.

E. P; `Bohm-:Aux

DUMPING UNIT FOR MOTOR TRUCKSl Filed Fen-20, 1929" 2 sheets-sheet VI 2sheets-sheet 2 E. P. BORDEAUX YDLAYIPIHCT UNIT FOR MOTOR TRUKS FiledFeb. 20, 1929 m w N -A Y E= mj L M.

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Jan. 6, 1931.

Patented Jan. 6, 1931 UNi'ii-i'- Sres rATE NT i oifrici:l

EPHRIAM PETER BORDEAUX, E GALION, omo, As'sIGNoR mo PEREECTION STEEL-EonY CO., OF GALION, OHIO, A CORPORATION OHIO DUMPING UNITl Eon MoronTEUGKSy Application led February 20, 1929. Serial-No, 341,497.4 y

This invention has for its object the provision of a dumping body unitwhich maybe mounted upon a motor truck chassis and operated by powerfrom the motor of the truck. A particular object of the invention is toprovide a raising and lowering mechanism wliicliwill be so disposed thatit will continue to operate until the power is cut off so that, if theoperator should fail to vcut of the power when the body has 'been raisedto dumping position, no accident will occur and stripping of thegearswill be prevented.V The invention is illustrated in the accompanydrawings and will be hereinafter fully set forth.

In the drawings:

Figure 1 is a side view, partly in section,

`ofa dumping unit embodying the invention and applied to a motor truckchassis, Y y

Fig. 2 is'a plan view, partly in .horizontal section, of the saine, Fig.3 is an enlcrged detail section of the worin gearing and its case on theline'S-j-B of Fig. 2, and f Fig. 4 is a detailsectional device shown inFig. 3. Y

The truck chassis may be of an'yapproied form, and in the drawings Ihave shown the side bars or sills 1 thereof, the rear crossbar elevationlof the 2 of the same and the rear ground wheels 3.

A portion of the transmission gearing is in-V dicated inaconventionalnianner at 4;'-in

f In carrying. out the present invention,

`there is provided a supplemental or auxiliary frame including crossbars 5 which may be provided in any desired number and arepreferablychannel bars set on edge, ,as shown lmost clearly in Fig. 1.VThesecross beams are .placed directlyupon the sills of the chas-A sisand may be riveted or otherwise securely fastened thereto. Resting uponand secured to theV cross bars 5 are longitudinal bars 6,

each other. Adjacent the rear ends'of lthe outer longitudinal bars 6,hinge f'b'racket-s 7 are securedy thereon, and to these brackets arepivotally attached the hinge members or brackets 8 which are secured tothe dumping body 9 and depend therefromasshown in F ig; 1.' Disposedupon the forward cross bars 5 is a shortlongitudinal bar 10 which isdisposed parallel with and rather close'to the inner bai' 6 at :the lefthand side of the frame. The barlO and the adjacent bar 6 provide supports for a forward shaft 11 and an inter# mediate stud shaft 12, theshaft 11 carrying a spur gear '13 which isfdisposed between the bars 6and 10, as shown clearly in Fig; 2, and the stud shaft 12 carrying apinion VY14 which meshes with the gear 13 and is disposed also betweenthebars and V6.A The gear 13 also meshes with a pinion 15 which is'disposed -below the gear and-is carried bythe outer end of a sliaftl`extending into a gear'case 17 which is mounted upon vthe outer side ofthe bar 6. in anyconvenient manner.

upon the shaft -16 and meshes with a worin 19 upon a shaft 20 which lisjournaled in thek case, as shown in Fig.v 3, and extends through thefront side of the same. The shaft20 is connected by a universal joint 21with a transmission shaft 22v havingits front end connected by auniversal oint 23 with a shaft 24 extending "from a gear case 25 whichis disposed around andhouses a power take-oli' device`-c'onnected withthe transmissionY gearing 4 or withlthe` motor shaft and which may be ofany approved type, detailed illustra-l tion Vand description of thesaine being deemed The case y17 houses a worrngear 18 which is securedunnecessaryinasmuch as, in itself, itifornis no part of thej presentinvention. l' Y .Disposed at the rear ofthe shaft'12 and the pinion 14thereon is a'counter-shaft 26 which is mounted in bearings providedthereforv upon t-he inner longitudinal bars Gand has secured thereon agear 27 which mesheswith the pinion -14 whereby theshaft 26 will be`rotated. The vendsv of the Yeliaftf26 ar'e'ex-V tended Vlaterally beyondtheirbearings and areequipped withpinions 28adjacent the outerSidesOfthe inner bars V6, as shown in' F ig. '2. Parallel with and atthe rear ofthe shaft 26 is the lifting shaft 29 which is also Vmountedin bearings provided therefor upon the inner bars 6 and is equipped atits ends with .gears 30 meshing with the respectively ladjacentpinions28. Upon the outer side of each gear 30`and disposed across adiameter of the gearisa .lifting arm or lever 31, and'V itwill.bejnoted"particularly upon reference 'to Fig. 2 that said levers orlifting yarms are Voffset whereby their working ends will be #arrangedto clear' the f gears v`'and the-'rpini-ons .meshing therewithande-workin'l the` free space provided between the inner` andiouter bars6.

To the outer ends of the armslare pivotedl the lower ends of links32which extend to theV dumping body 9 and have their'upper'e'nds 'pivotedto the bottom of the body.

At the ends of the` foremost cross -bar naife :securedposts-BB whichconstitute stopsand rests `forthe front end ofthe dumping body A26.9 sothat Ithe'rbody `wijll'be supported its charge a load, lthe truck` isdriven'to the, point of delivery andthe power take-off. device,.indicated at'25, is thrown into a.cti'on,.a hand i lever 34e beingsprovidedfor this purpose. ad-

Ajacent the cab of the truck. -The power of the engine will then betransmitted through the shaftsQll, 22 and 2O to the worm :gearing sothat the shaft 16 will berotated and themotion ofsaid shaft will betransmitted ythrough the shown and describedrgearing tothe lifter shaft29. Vlherotation of the shaft 29'will `-be transmittedrdirectly' to .thelifterarms'Y 31 so-that the outer ends ofsaid arms will be swungupwardly .and will transmit alifting.

`.force through YVthe `links 32 -to the dumping jbody 9. As thearms-l.travel upwardly, the force .applied thereby .through thelinlrs 32 tothedumping body will ,causer the body to swingabout its hinge connection`'with the `auxiliary;frame and assumethe position," shown in Fig. l,whereuponfthel load willjbe discharged.V Vith the dumpingbodies as lnewgenerally'. mounted, itvisintended that n the operator should rcnt off fthe power just Vas the discharging position.isjreachedY but l j theoperators are .not alwaysvigilant and yskillful and itvfrequentlyfhappens that the .power is not Y cut ofl"V atthepropermoment' Hand the motion of the lifting arms continues. f

As i the mechanism is now most generally arranged, the continuedVmovement of the hf- Y -infgarms after the dumping position hasbeen feo'reached by the body causes serious accidents and strips the gears sothat thetruck is'put out .of commission and considerable 'expense' `Vforrepairs-incurred. VvWith my `present arrangement,"tlie lifting ai'insarearranged to should :not -bepcut off, the Ylifting arms willi`:simply"continue tovrotate uninterruptedly Y operate ina free space sothat, if the Ypower and the dumping body will be alternately lowered andraised until the operators at# tention is caught and the power is cut0E. It

will be noted that the parts are arranged especially to provide for afree continued Vcomplete rotation of the lifter arms, where- V'as withthe arrangements now in use, so far asl aniaware, the lifting armsinoverin one direction to raise the body to dumping position and tlienmust reverse the motion and travel in'the opposite direction in order tolower the body. All the working parts of my apparatus are disposedbetween the sides of the truck chassis so that they are not aptYto'catch in the clothing of the operator or any person acent the truckand thereby cause serious injury, and it is obvious that the entiredevice may be prepared as a complete unit and mounted upon any truckchassis in a short period of time and noalteration or reconstruction ofthe truck chassis will be necessary.V The tumbler shaft consisting oftheseveral sections connected by 4universal joints maybe readilyV connectedwith' any power taire-off device and if the truck should not be equippedwith such a device any known ypower take-oftl may be'added to the enginewithout involving any change in the .apparatus of the invention. n v

Having thus described the invention, I claim: l

A. dumping unit f-or motor trucks comprising an auxiliaryframeconsisting of a series of cross bars adapted Yto rest on and besecured to side bars of a truck chassis, inner and outer longitudinalbars ksecured on said'cross bars in transversely spaced relation'to eachoth-er, a lifter. shaft rotatably mounted upon the inner. longitudinalbars andextending acrosstl'iefsame with its ends n projectingvtherefrom, va dumping body hingedly mounted upon the outer longitudi-,nal bars adjacent the rear ends thereof, gears fitted upon the ends ofthe lifter shaft, lifter arms secured against l.the outer faces of saidgears and projecting radially "therefrom,

links connecting Vthe lifter arms with'the dumping body, a counter-shaftrotatably Vmounted on the auxiliary frame in advance of: the liftershaft, pinions carried by the eountershaft and rmeshing with the gearsof "the lifter shaft, worin' gearing mounted on the forward portion ofthe auxiliary frame,

a tumbler shaft adapted to connect said worm gearing with aV powertake-ofi", and gearing l connecting the wormjgearing'with thecounter-shaft. l .Y

A'ln testimonywhereof I affix mysignature.

nri-iniiiMr. BORDEAUX; [a s] ist

